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Finding the Fourth Proportional to 315,126, 472,689 and 93,510

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Solution

The fourth proportional to 315,126, 472,689 and 93,510 is: 140,265

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,126 : 472,689 = 93,510 : x
  2. Step 2: Convert to fraction form
    315,126/472,689 = 93,510/x
  3. Step 3: Cross multiply
    315,126x = 472,689 × 93,510
  4. Step 4: Simplify right side
    315,126x = 44,201,148,390
  5. Step 5: Solve for x
    x = 44,201,148,390/315,126
  6. Step 6: Final answer
    x = 140,265

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.